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807523 — RING SET,PISTON

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

807523: RING SET,PISTON.

The RING SET,PISTON is a the manufacturer industrial component. Key specifications include bore_diameter_oversize: 0.040 INCHES IN, standard_bore_diameter: 3.125 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 2805-00-625-6275, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
807523
NSN: 2805-00-625-6275
FSC: 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
CAGE: 34623 — AM GENERAL LLC (USA)
SPECIFICATIONS
bore_diameter_oversize0.040 INCHES IN
standard_bore_diameter3.125 INCHES IN
ring_set_component_partsCOMPRESSION RING,C2RR302-33-S143-4,77220,4,COMPRESSION RING,7FR302-33-S143-4,77220,4,OIL RING,9-302-3-127-505,77220,4,SCRAPER RING,LC-302-0153-4,77220,8
piston_accommodation_quantity4
NSN2805-00-625-6275
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING SET,PISTON TITLE COMPONENT PN 807523 MFR RING SET,PISTON
KEY FEATURES
•
BORE DIAMETER OVERSIZE: 0.040 INCHES IN
•
RING SET COMPONENT PARTS: COMPRESSION RING,C2RR302-33-S143-4,77220,4,COMPRESSION RING,7FR302-33-S143-4,77220,4,OIL RING,9-302-3-127-505,77220,4,SCRAPER RING,LC-302-0153-4,77220,8
•
PISTON ACCOMMODATION QUANTITY: 4
•
STANDARD BORE DIAMETER: 3.125 INCHES IN
TECHNICAL CHARACTERISTICS
BORE DIAMETER OVERSIZE0.040 INCHES IN
RING SET COMPONENT PARTSCOMPRESSION RING,C2RR302-33-S143-4,77220,4,COMPRESSION RING,7FR302-33-S143-4,77220,4,OIL RING,9-302-3-127-505,77220,4,SCRAPER RING,LC-302-0153-4,77220,8
PISTON ACCOMMODATION QUANTITY4
STANDARD BORE DIAMETER3.125 INCHES IN
SUBSTITUTES & CROSS-REFERENCES 8
116706Reference document
Same NSN cross-reference
Reference document — Secondary reference
116708Reference document
Same NSN cross-reference
Reference document — Secondary reference
640927Reference document
Same NSN cross-reference
Reference document — Secondary reference
5702263Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
919197Reference document
Same NSN cross-reference
Reference document — Secondary reference
809049Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 807523?
807523 is a RING SET,PISTON.
What parts can replace 807523?
There are 8 known substitutes for 807523: 116706, 116708, 640927 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 807523?
807523 is cataloged in the U.S. Government catalog under NSN 2805-00-625-6275. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.